1W Carbon Film Resistor , 1 Ohm Low Resistance Resistor

STYLE

MAX

WORKING

MAX

OVERLOAD

RESISTANCE

VALUE RANGE

CF1/6W / CF1/8W

200V

400V

0.1Ω〜22MΩ

CF1/4W / CF1/4WS

300V

600V

0.1Ω〜22MΩ

CF1/2W / CF1/2WS

350V

700V

0.1Ω〜22MΩ

CF1W / CF1WS

500V

1000V

0.1Ω〜22MΩ

CF2W / CF2WS

500V

1000V

0.1Ω〜22MΩ

CF3W / CF3WS

600V

1000V

0.1Ω〜22MΩ

CF5W / CF5WS

600V

1000V

0.1Ω〜22MΩ

ITEM (STANDARD)

PERFORMANCE AND/OR

QUALIITY ACCEPTANCE

TEST METHOD

Resistance value Vs

Temperature

Characteristics

For RX∠100KΩ

+350〜-500PPM/℃

100KΩ≦RX ≦1MΩ

0〜-700PPM/℃

1 MΩ ∠ RX

0〜-1500PPM/℃

JIS-C-5202 5.2

Measure resistance (Ro ohm) at room

Temperature(To ℃)

Measure again the same at 100℃

Higher than room temperature

6

R – RO 10

PPM = *

RO (T0+100) –T0

Short time overload

The resistance variation shall be

within±(0.75% + 0.05 ohm) and there

Shall be no mechanical breakage

JIS-C-5202 5.5

Apply DC voltage 2.5times the rated

Voltage for 5 seconds

The leave at room temperature for 30

Minutes then measure MAX overload

Voltage 0.50W – 700V (DC)

Insulation resistance

1000M ohm or more

JIS-C-5202 5.6 In V-BLOCK

Lay the resistor on 90° angle metal V

Block apply 100VDC between resistor

Lead and V block for one Minute And

Measure

Voltage endurance

The resistance variation shall be

within±(2% + 0.05ohm) and there

shall be no mechanical breakage

JIS-C-5202 5.7

Icy the resistor on the 90° angle metal V

Block and apply reamed AC voltage for

One Minute. Test voltage 0.25W –

500V (AC) 0.50W –700V(AC)

Intermittent overload

Resistance variation shall be

Within ±(2.00% + 0.05ohm)

JIS-C-5202 5.8

Apply AC voltage 4 times the rated

voltage for 1 second and rest for 25

seconds and Repeat this cycle for

10000±200times leave resistor 30

minutes at room temperature after test

and measure Maximum voltage for

intermittent Overload.0.50W-700V(AC)

Terminal strength

Resistance variation shall be within

±(0.5% + 0.05ohm) also there

Shall be on mechanical breakage

Pull test: apply 2.5kg force to the

lead in the direction of lead

axislor30±5 seconds.

Heat resistively

Against soldering

Resistance variation shall be within ±

(1.0%+0.05ohm) also there

Shall be on mechanical breakage

JIS-C-5202 7.10

Dip the lead in to a solder bath having a

Temperature of 350℃ ± 10℃ up to

4±0.8mm from the body of the resistor

at room temperature 3 hours after ,then

Measure

Solder ability

More than 95% of the surface of the

lead shall be covered by new solder

after the leads are dipped in the

Solder

JIS-C-5202 6.5

Dip the lead in to a solder bath having a

Temperature of 260℃± 5℃ up to

4±0.8mm from the body of the resistor and

hold it for 5 ± 0.5seconds then inspect

Humidity load test

Resistance variation be

Within ± (3.0% + 0.05ohm)

Also there shall be mo mechanical

breakage

JIS-C-5202 7.9

In temperature chamber having

temperature 40℃± 2℃,relative

humidity 90 – 95%, Apply rated

voltage 1.5hour and shut voltage 0.5

hour repeat this cycle for 1000 hours,

leave in room temperature for lhour

after test, then measure

Load life test

The variation of the resistance

Shall be within ± (3%+0.05ohm)

Also there shall be no mechanical

Breakage

JIS-C-5202 7.10

In the constant temperature chamber having

Temperature70℃ ± 2℃,apply rated

Dc voltage for 1.5hour and shut voltage for

0.5 hour and repeat thin cycle for 1000

hours, leave in room temperature lhour

after test, then measure

Color

1 st Band

2 nd Band

3 rd Band

4 th Band

Black

0

0

0

10

Brown

1

1

1

10

Red

2

2

2

10

±2.0%

Orange

3

3

3

10

Yellow

4

4

4

10

Green

5

5

5

10

Blue

6

6

6

10

Violet

7

7

7

10

Grey

8

8

8

10

White

9

9

9

10

Gold

-1

10

±5.0%

Silver

-2

10

±10.0%